空气质量预报
空气质量数据提供者: the Japan Atmospheric Environmental Regional Observation System (環境省大気汚染物質広域監視システム) (soramame.env.go.jp) and the Hokkaido Prefecture EPA (北海道) (pref.hokkaido.lg.jp)
Note that the measurements for SO2 (sulfur dioxide), CO (carbon monoxide) and O3 (ozone) are taken from the station: JP:旭川市/中央